Alert archive / California / Frost Advisories in 2018
Frost Advisory 8, NWS Eureka, CA
NWS Eureka, CA issued this frost advisory at Apr 2, 2018, 2:05 PM PDT for Del Norte County, Humboldt County, Mendocino County, California. It took effect at Apr 3, 2018, 1:00 AM PDT. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Apr 2, 2018, 2:05 PM PDT (21:05 UTC)
- In effect from
- Apr 3, 2018, 1:00 AM PDT
- Expired
- Apr 3, 2018, 9:00 AM PDT
- In force
- 8 hr
- Issued by
- NWS Eureka, CA
Counties Del Norte County, CA, Humboldt County, CA, Mendocino County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 47 km from the middle of the area, began a volume at 21:08 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Medford/Jackson, OR (KMFR), launched 12:00Z, 9.1 hours before the alert went out and 210 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 698 m above ground
- 0-6 km bulk shear
- 84 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- 164 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
463 WWUS76 KEKA 022105 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 205 PM PDT Mon Apr 2 2018 CAZ102>106-110-111-031015- /O.NEW.KEKA.FR.Y.0008.180403T0800Z-180403T1600Z/ Del Norte Interior-Northern Humboldt Coast-Southwestern Humboldt- Northern Humboldt Interior-Southern Humboldt Interior- Northwestern Mendocino Interior-Northeastern Mendocino Interior- 205 PM PDT Mon Apr 2 2018 ...FROST ADVISORY IN EFFECT FROM 1 AM TO 9 AM PDT TUESDAY... The National Weather Service in Eureka has issued a Frost Advisory...which is in effect from 1 AM to 9 AM PDT Tuesday. * LOW TEMPERATURES...mid 30s. * LOCATIONS INCLUDE...Gasquet...Arcata...Eureka...Fortuna... Petrolia...Honeydew...Ettersberg...Orleans...Willow Creek... Bridgeville...Leggett...Laytonville...Willits...Covelo.... * FOR A DETAILED VIEW OF THE HAZARD AREA...visit http://www.wrh.noaa.gov/map PRECAUTIONARY/PREPAREDNESS ACTIONS... A Frost Advisory means that frost is possible. Sensitive outdoor plants may be killed if left uncovered. && $$
5 follow-up statements
615 WWUS76 KEKA 030324 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 824 PM PDT Mon Apr 2 2018 CAZ102>106-110-111-031600- /O.CON.KEKA.FR.Y.0008.180403T0800Z-180403T1600Z/ Del Norte Interior-Northern Humboldt Coast-Southwestern Humboldt- Northern Humboldt Interior-Southern Humboldt Interior- Northwestern Mendocino Interior-Northeastern Mendocino Interior- 824 PM PDT Mon Apr 2 2018 ...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM PDT TUESDAY... * LOW TEMPERATURES...mid 30s. * LOCATIONS INCLUDE...Covelo...Leggett...Laytonville... Willits...Gasquet...Orleans...Willow ...Creek...Petrolia... Honeydew...Ettersberg...Garberville...Bridgeville...Arcata... Eureka...Fortuna. * FOR A DETAILED VIEW OF THE HAZARD AREA...visit http://www.wrh.noaa.gov/map $$
861 WWUS76 KEKA 030325 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 825 PM PDT Mon Apr 2 2018 CAZ102>106-110-111-031600- /O.CON.KEKA.FR.Y.0008.180403T0800Z-180403T1600Z/ Del Norte Interior-Northern Humboldt Coast-Southwestern Humboldt- Northern Humboldt Interior-Southern Humboldt Interior- Northwestern Mendocino Interior-Northeastern Mendocino Interior- 825 PM PDT Mon Apr 2 2018 ...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM PDT TUESDAY... * LOW TEMPERATURES...mid 30s. * LOCATIONS INCLUDE...Covelo...Leggett...Laytonville... Willits...Gasquet...Orleans...Willow Creek...Petrolia... Honeydew...Ettersberg...Garberville...Bridgeville...Arcata... Eureka...Fortuna. * FOR A DETAILED VIEW OF THE HAZARD AREA...visit http://www.wrh.noaa.gov/map $$
576 WWUS76 KEKA 030355 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 855 PM PDT Mon Apr 2 2018 CAZ102>106-110-111-031600- /O.CON.KEKA.FR.Y.0008.180403T0800Z-180403T1600Z/ Del Norte Interior-Northern Humboldt Coast-Southwestern Humboldt- Northern Humboldt Interior-Southern Humboldt Interior- Northwestern Mendocino Interior-Northeastern Mendocino Interior- 855 PM PDT Mon Apr 2 2018 ...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM PDT TUESDAY... * LOW TEMPERATURES...mid 30s. * LOCATIONS INCLUDE...Covelo...Leggett...Laytonville... Willits...Gasquet...Orleans...Petrolia... Honeydew...Ettersberg...Garberville...Bridgeville...Arcata... Eureka...Fortuna...Willow Creek. * FOR A DETAILED VIEW OF THE HAZARD AREA...visit http://www.wrh.noaa.gov/map $$
629 WWUS76 KEKA 031141 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 441 AM PDT Tue Apr 3 2018 CAZ102>106-110-111-031600- /O.CON.KEKA.FR.Y.0008.000000T0000Z-180403T1600Z/ Del Norte Interior-Northern Humboldt Coast-Southwestern Humboldt- Northern Humboldt Interior-Southern Humboldt Interior- Northwestern Mendocino Interior-Northeastern Mendocino Interior- 441 AM PDT Tue Apr 3 2018 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING... * LOW TEMPERATURES...mid 30s. * LOCATIONS INCLUDE...Covelo...Leggett...Laytonville... Willits...Gasquet...Orleans...Petrolia... Honeydew...Ettersberg...Garberville...Bridgeville...Arcata... Eureka...Fortuna...Willow Creek. * FOR A DETAILED VIEW OF THE HAZARD AREA...visit http://www.wrh.noaa.gov/map $$
890 WWUS76 KEKA 031604 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 904 AM PDT Tue Apr 3 2018 CAZ102>106-110-111-031715- /O.EXP.KEKA.FR.Y.0008.000000T0000Z-180403T1600Z/ Del Norte Interior-Northern Humboldt Coast-Southwestern Humboldt- Northern Humboldt Interior-Southern Humboldt Interior- Northwestern Mendocino Interior-Northeastern Mendocino Interior- 904 AM PDT Tue Apr 3 2018 ...FROST ADVISORY HAS EXPIRED... $$
Nearby
Frost Advisories in California, 2018Every frost advisory in 2018
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.